Replace DCHECK(BrowserThread::CurrentlyOn) with DCHECK_CURRENTLY_ON in extensions.

chrome/browser/extensions/api/system_info/system_info_provider.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/extensions/api/system_info/system_info_provider.h"
 
 #include "base/bind.h"
 #include "content/public/browser/browser_thread.h"
 
 namespace extensions {
@@ skipping 10 matching lines @@
 
 void SystemInfoProvider::PrepareQueryOnUIThread() {}
 
 void SystemInfoProvider::InitializeProvider(const base::Closure&
     do_query_info_callback) {
   do_query_info_callback.Run();
 }
 
 void SystemInfoProvider::StartQueryInfo(
     const QueryInfoCompletionCallback& callback) {
-  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
+  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   DCHECK(!callback.is_null());
 
   callbacks_.push(callback);
 
   if (is_waiting_for_completion_)
     return;
 
   is_waiting_for_completion_ = true;
 
   InitializeProvider(base::Bind(
       &SystemInfoProvider::StartQueryInfoPostInitialization, this));
 }
 
 void SystemInfoProvider::OnQueryCompleted(bool success) {
-  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
+  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
 
   while (!callbacks_.empty()) {
     QueryInfoCompletionCallback callback = callbacks_.front();
     callback.Run(success);
     callbacks_.pop();
   }
 
   is_waiting_for_completion_ = false;
 }
 
 void SystemInfoProvider::StartQueryInfoPostInitialization() {
   PrepareQueryOnUIThread();
   // Post the custom query info task to blocking pool for information querying
   // and reply with OnQueryCompleted.
   base::PostTaskAndReplyWithResult(
       worker_pool_,
       FROM_HERE,
       base::Bind(&SystemInfoProvider::QueryInfo, this),
       base::Bind(&SystemInfoProvider::OnQueryCompleted, this));
 }
 
 }  // namespace extensions